STA333BW View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

STA333BW

2.1-channel 40-watt high-efficiency digital audio system Sound Terminal®

STMicroelectronics 

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Register description

STA333BW

2.0 channels, two full-bridges (OCFG = 00)

Mapping:

z FFX1A -> OUT1A

z FFX1B -> OUT1B

z FFX2A -> OUT2A

z FFX2B -> OUT2B

z FFX3A -> OUT3A

z FFX3B -> OUT3B

z FFX4A -> OUT4A

z FFX4B -> OUT4B

Default modulation:

z FFX1A / 1B configured as ternary

z FFX2A / 2B configured as ternary

z FFX3A / 3B configured as lineout ternary

z FFX4A / 4B configured as lineout ternary

On channel 3 line out (LOC bits = 00) the same data as channel 1 processing is sent. On

channel 4 line out (LOC bits = 00) the same data as channel 2 processing is sent. In this

configuration, volume control or EQ have no effect on channels 3 and 4.

In this configuration the PWM slot phase is the following as shown in Figure 15.

Figure 15. 2.0 channels (OCFG = 00) PWM slots

OUT1A

OUT1B

OUT2A

OUT2B

OUT3A

OUT3B

OUT4A

OUT4B

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Doc ID 13773 Rev 3

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